Cyclooctenes are useful in strain-promoted copper-free click chemistry cycloaddition reactions with 1,2,4,5-tetrazines. The cycloaddition between trans-cyclooctene and tetrazines is the fastest biologically compatible ligation technology reported. It has had many reported applications in biological labeling and imaging.
Axispharm offers 3000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.